Saw-swaging machine



(No Model.) 2 Sheets-Sheet 1;

- M. GOVEL.

SAW SWAGING MACHINE.

No. 398,032. Patented Feb. 19, 1889.

(No Model. 2 SheetsSheet 2.

M. GOVEL.

SAW SWAGING MACHINE.

No. 398,032. Patented Feb. 19, 1889.

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MILO COVEL, OF CHICAGO, ILLINOIS.

SAW-SWAGING MACHINE.

SPECIFICATION forming part of Letters Patent No. 398,032, dated February 19, 1889.

Application filed October 18, 1888. Serial No. 288,456. (No model.)

T 0 aZZ whom it may concern: be dressed or replaced by another when worn Be it known that I, MILO COVEL, of Chicago, county of Cook,- and State of Illinois, have invented certain new and useful Improvements in Saw Swaging Machines, of which the following is a full, clear, and exact description, that will enable others to make and use the same, reference being had to the accompanying drawings, forming a part of this specification.

This invention relates to improvements in that class of devices that are more especially intended for use on hand and gang saws; and to this end the same consists of certain novel features in the construction, combination, and arrangement of the several parts, as will be hereinafter set forth.

Figure 1 is a front elevation of a machine embodying my improved features; Fig. 2, a horizontal section in plane 2, Fig. 1, looking in the direction indicated by the arrow; Fig. 3, a vertical transverse section in plane 3, Fig. 1; Fig. 4, a broken-away horizontal section in plane at, Fig. 3; and Fig. 5, a detached detail of the swaging-dies.

Referring to the drawings, A represents the different parts comprising the supportingframe; A, the driving-shaft, provided with suitable journal-bearings in the frame; and A A the usual band-pulleys mounted on the outer end of said shaft.

The head-block A is mounted 011 the top of the supporting-frame. The horizontal rocking die B is inserted transversely through the head-block. One end of the link B is rigidly secured to the roller-die and the opposite end pivoted to the upper end of the connecting-rod E the lower end of which is in turn properly connected .0 the hub of the eccentric strap B mounted on the cam and crank wheel 13, as shown in Figs. 1 and 2. By this means a slight rolling or rocking movement is imparted to the die B. This rollerdie is provided with a recess, as indicated by dotted lines in Fig. 5, at a point in line with the path of the saw for adjustably seating the die-point a, which is retained in place by the set-screw a, inserted in the front end of the roller-die, this die-point can be set at any angle desired, and can be readily removed to out.

The stationary die O is inserted diagonally through the head-block from the top, as shown in Fig. 1. The position of the same being indicated by dotted lines. The stationary diebar 0 has a threaded engagement with the screw-bolt O, whereby the stationary die may be properly set with reference to the rolling die.

The vertical guides C C are bolted to the frame, the cross-head 0 having a vertical movement between the same. The step-block a is bolted to the front side of the cross-head and forms a rest or seat for the back of the saw C during the swaging process.

a" is a plate bolted to the upwardly-proj ecting rectangular flange a of the cross-bar C, as shown in Figs. 1 and 3.

The lower end of the outer vertically-arranged clamping-bar, D, rests upon the flange a and is adj ustably secured to the crosshead O by hand-screw a. The lower part of the companion clamping-bar D is rigidly secured to the cross-head. The upper ends of these bars are beveled on their outer sides, as at a a a are spring clamping-jaws lying in a horizontal plane, the. outer ends of which are bolted to the head-block, the inner or opposite ends bearing against the outer sides and upper ends of the bars, as shown in Figs. 3 and 4. The contacting ends of the springjaws are correspondingly beveled, so that when the saw-clamping bars and the springjaws engage it is with a wedge-like action. This arrangement provides an automaticallyoperating clamp. 011 the down movement the pressure on the saw is early relaxed,leaving the same free to be moved by the feed mechanism to bring the next. tooth into position to be swaged. On the up movement the saw is firmly clamped just before the teeth come in contact with the swaging-dies. The screws b b are for the purpose of securing a proper adjustment between the clampingbars and spring-jaws.

The vertical adj Listing-screws Z) Z) are inserted in the under side of the cross-head O, and ordinarily will have the head ends rest on the upwartilly-projeeting flange of the crossbar 3y lengthening or shortening said screws the erosshead may be set higher or lower, in accordance with the width. of the saw inserted between the clamping-bars.

The cross-bar ('i" has a vertical movement between the statitmary guides C (1, and is cut away on the under side at one end to form the beveled shoulder U (see Fig. 1,) normally engaging with the correspondingly-beveled offset 0 in the slide-bar E, on which the cross bar rests. The opposite end and under side of the cross-bar Uis provided with the downwardly-pr jccting part 0, having the beveled shoulder U normally engaging wit-h the beveled part b on the upper side of the slidebar E. ()nc end oi the connecting-rod D is pivoted to the extended end oi the slide-bar E and the other end properly connected to the crank-wheel 13', as shown in Figs. 1. and 2. Now as the crank-wheel rotates a reciprocating and cndwise movement is imparted to the slide-bar E, which has, by reason of the beveled eoniactingsur.lfaces, the effect of 3 raising and lowering the cross-bar and crosshcad and bringing the saw into position at each movement to be operated upon by the swaging-dies.

The vertical screw-shaft F has a threaded engagement with the rear side of the crosshead, (see Fig. 3,) and has the pinion-wheel I! mounted on the lower end, which engages in turn with the pinion d on the inner end of the horizontal shaft 1?,journa1ed in the 5 cross-bar (i The outer end of the shaft F is square, to receive a suitable handle for rotatin the same, thus providing a means for raising and lowering the cross-head when adjusting the saw with relation to the swagingdies. The spiral spring (Z serves to assist in the down movement of the cross-head and parts.

F is a bevel-pinion mounted on the inner end ol. the driving-shaft A and engages with the gcanwheel 1 mounted on the back end of the counter-shaft 1 carrying the crank and cam wheel B" on the opposite end, as shown in Fig. 2, this arrangement transmitting the required motion and power to raise up and bring the saw in contact with the swaging-dies once in each revolutitm.

The teed-lever ll is bolted to the bellcranl lever II at d, which is in turn connected to inserted through the lower end of the feed-lever, and so arranged that the head end will have an intermittent contact with the guide 0". The function of these gage-bolts is to regulate the throw of the feed-lever by ad justing or setting them as circumstances may require.

The spring 74? assists in returning the feed mechanism to its normal posit-ion.

It is of course understood that the dit'lferout parts must be properly adjusted and set so as to time the movement of the same with reference to each other.

- Having thus d esoribed my invention, what I claim, and desire to secure by Letters Patent,

1. -In a saw-swagc, the combination, with the frame, of the head-block, the rocking or rolling die inserted in said head-block, the link, connected at the inner end to said die, the connecting-rod pivoted to the outer end of said link, the eccentric-strap, in which the lower end of the connecting-rod is inserted, the cam or crank wheel, and the countershatt upon which the same is mounted, whereby the required motion is transmitted to the l'ollerdie, substantially as and for the purpose set forth.

2. In a saw-swage, the combination, with the frame, of the head-block supported there on, the rocking or roller die inserted horizon tally in said head-block and provided with a recess in the line of the saw, the adjustable diepoint seated in said recess, the stationary die passing diagonally through said head-block, and the screw-bolt having a threaded engagement with the rearend of said. stationary die, whereby the same may be adjusted with reference to the roller-die, and the die-point inserted therein, suliistantially as and for the purpose set forth.

3. In a saw swage, the combination, with the frame, of the vertical guides bolted there to, a cross-head moving between said guides and provided with a seat-rest tor a saw, the saw-clamping bars secured. to and moving with the crosshead, a crossbar having beveled shoulders on the under side, as described, and arranged between said guides below the cross-head, the plate a bolted to the crossbar, the slide-bar E engaging with the under side of the cross-bar and having beveled shoulders, the connecting-rod 13*, the crankwheel B", and the counter-shaft upon which the same is mounted, whereby a vertical movement is transmitted to the cross-head and the saw raised to bring the teeth in position to be operated upon by the swaging-dies once in each revolution of the crank-whee], substantially as set forth.

4. In a sawwswage, the combination, with the head-block, of the war-clamping bars having beveled upper ends, the spring'jaws rigidly secured at one end, the opposite beveled ends bearing loosely against the outer beveled surfaces of the clamping-bars, and the ad Justin g-screws inserted through the head-block and havin contact with said jaws, substantially as and tor the purpose set forth.

In a saw-swagc, the combination, with IlO the eross-head (J and the crossbar C, of the adj Listing screw-bolts b I), inserted in the under side of said cross-head and adapted to rest on the upwardly-projecting flange a, forming a part of said cross-bar, substantially as and for the purpose set forth.

6. I11 a saw-swag'e, the combination, with the frame, of the cross-head, the cross-bar C, the vertical screw-shaft F, the pinion-wheel d, the horizontal shaft F, and the pinion d, whereby the saw may be raised by hand for the purpose of securing the proper adjustment of the same relative to the swag'ingdies, substantially as and for the purpose set forth.

7. In a smv-swage, the combination of the 

